Bellow the quote, where Farmville is quoted as a RPG? It is quoted only to symbolize a lambda player.

And even in case of COD it isn't quote as a RPG, but as having some RPG element through the medal system earned through experience.

There's a huge difference between that and pretend Mark said they are RPG.

For me, I guess, fundamentally, there are more people who are ready to play RPGs than realize it. These are people who will play FarmVille. These are people who have shot enough people in the head that they’ve leveled up in Medal of Honor. They’ve gained XP and have received awards as a result. That’s an RPG mechanic. They’ve played [Grand Theft Auto] San Andreas and they’ve run enough, and gotten buff enough, that their endurance is a higher. They’ve leveled.